Onions and peppers boiled in water are effective in relieving spasm and pain, dispersing wind-cold and so on. The main treatment of wind-cold cold, abdominal pain. Pepper is pungent in flavor, warm in nature and belongs to the spleen, stomach and kidney meridians, it has the effect of warming the middle and relieving pain (relieving pain by warming the spleen and stomach), killing insects and relieving itching. After identification, it can be used for cold pain in the epigastric region (stomach and abdomen feel cold pain), vomiting and diarrhea, abdominal pain of worms; external eczema, pubic itch. Drinking water boiled with onions and peppercorns can relieve cold pain in the epigastrium and abdomen, vomiting and diarrhea. Allergic to onions and peppers need to be disabled. Peppercorns are hot and pungent, easy to hurt the yin and move the fire, yin deficiency and internal heat should be used with caution. If onions and peppers boil water to drink, it is recommended to take under the guidance of traditional Chinese medicine, not blindly self-medication.